Re: BUG: general protection fault in put_links

[Xingyu Li]

We use syzkaller to fuzz the linux kernel, and this bug is triggered
during fuzzing. However, unfortunately, syzkaller did not generate
reproducing source codes.

On Tue, Aug 27, 2024 at 12:50 PM Joel Granados <j.granados@xxxxxxxxxxx> wrote:
>
> On Sat, Aug 24, 2024 at 10:04:54PM -0700, Xingyu Li wrote:
> > Hi,
> >
> > We found a bug in Linux 6.10. It is probably a null pointer reference bug.
> > The reason is probably that before line 123 of
> > fs/proc/proc_sysctl.c(entry = &head->ctl_table[ctl_node -
> > head->node];), there is no null pointer check for `head`.
> > The bug report is as follow:
>
> Thx for the report. How did you trigger it. Do you have code that
> triggers it?
>
> Best
>
> --
>
> Joel Granados



-- 
Yours sincerely,
Xingyu